DE1263030B - Stamping device - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

B 41k

German class: 15 h -2/01

Number: 1263 030

File number: J 25870 VII b / 15 h

Filing date: May 21, 1964

Opening day: March 14, 1968

The invention relates to a stamping device with a relative movement used for stamping between the surface to be stamped and the electromagnet generating the stamp carrier and with several punches that can be adjusted independently of each other and simultaneously on a common shaft wheels that can be connected to a common drive device via clutches, as well as each through an electrical locking device can be influenced, the electrical locking device being one each stamp wheel has a respective locking lever actuating electromagnet.

In many work processes it is desirable to mark a product during manufacture in order to to be able to determine it later, or to find products with different properties or qualities to be able to determine by different numbers or characters. A particular example of one such application is the steel manufacturing industry, in which the individual customer orders identification numbers be assigned. These numbers are to be stamped on the products in each of their manufacturing stages.

It is therefore the object of the invention to provide a stamping device for the remote from a Station from controllable stamping of products with a multi-digit number or with an off create multiple letter word on one line. According to the invention, this is thereby achieved achieves that each stamp wheel bearing type characters on its outer surface, in radial Direction back and forth having plates that are inevitably successive in their radial External position are displaceable and with simultaneous coupling of the pressure wheel with the shaft in this External position can be fixed and that to control the coupling one of an external type selection device supplied, each assigned to a type symbol with the generated in the rhythm of the radially outwardly displaced plates, the assigned to these plates Pulse combinations comparing circuit is provided.

Although there has been proposed a device for setting combinations of characters is used for stamping devices and several independently and simultaneously adjustable Has character carriers which are rotatably arranged on a common axis and via couplings are connected to a common drive device and each by an electrical locking device can be influenced, the elek stamp device

Applicant:

International Business Machines Corporation,

Armonk, N. Y. (V. St. A.)

Representative:

Dipl.-Ing. H. E. Böhmer, patent attorney,

7030 Boeblingen, Sindelfinger Str. 49

Named as inventor:

Robert Joseph Brown, Rhinebeck, N. Y .;

Donald Bruce Derr, Mahopac, N. Y .;

Frederick Charles Good,

Yorktown Heights, N. Y. (V. St. A.)

Claimed priority:

V. St. v. America May 27, 1963 (283 462)

Irish locking device for each character carrier

as each has an electromagnet and a locking disk connected to the symbol carrier and a locking pawl that interacts with this and is controlled by the electromagnetic magnet. This device differs from the one according to the invention, however, in that the symbol carriers each work with a commutator with a number of lamellae corresponding to the number of individual symbols of the respective symbol carrier and that the lamellae of each commutator are connected to a common voltage source via switching devices that can be operated as desired. in the circuit of which the electrical locking device of the respective character carrier is arranged.
Details of the invention are described below using an exemplary embodiment illustrated in the figures. It shows

F i g. 1 a stamp device in a diagrammatic representation and a scheme of the associated control device,

F i g. FIG. 2 is a front view of one of the types shown in FIG. 1 used stamp device shown Stamp wheel and

F i g. 3 is a rear view of the stamp wheel of FIG. 2.

A plurality of stamp wheels, which are arranged on a common shaft 20 , are shown in FIG. 1 only shows three stamp wheels, but it is

809 518/12

3 4

it goes without saying that any number of stamp positions will be stopped. When the electromagnet wheels can be used. The shaft 20 is 94 de-energized, a spring 96 pulls the stop lever 92 rotated by a drive device, not shown, back to its original position, wound is in bearings in the arms of a carrier 21 by the punch wheel 86 for rotation with the disc (Fig. 2 , 3) mounted. Within each character wheel is 5 22 is released. When the punch wheel 86 is in the reference position of a disk 22 with separate groups 24, a cam 38 actuates cam-like contacts located on the boss, and each of these 90 (Fig. 3) a switch which generates a signal, groups 24 is straight along separate radii through which a switch described below is arranged on a surface of the disk 22. When the 60 is closed.

In the present embodiment, each group 24 can have a number of switches 98 (in the illustrated embodiment

Up to five cam contacts from the embodiment to be explained later are five such switches 98 a to

the reasons include. On the disk 22 is also 98 e in FIG. 2) is on the carrier 21 of the

a roller 44 rotatably arranged so that the roller mounted disc 22 adjacent so that the

protrudes beyond the circumference of the disk 22. The cam contacts on the disc 22 make the actuation

Disk 22 is also provided with several blind holes 15 of two or more of the five switches 98

stanchions 46 provided on a concentric ken. As described below, four of the

Circle on the switch 98 α to 98 d opposite the cam contacts for encryption and the

Side are arranged. The blind bores 46 act fifth switch 98 e used for alignment. at

with an equal number of spring-loaded balls actuate the rotation of the disc 22 on it

66 together on a punch wheel 86 and form 20 groups of cam contacts provided over-

thereby spring-loaded locking notches. The disc 22 sits matching switches until a given group

non-rotatable on the shaft 20 and, following cam contacts, the actuation of a given

lich with this. a pattern of switches 98 a to 98 a * causes

The stamp wheel 86 is cup-shaped and which corresponds to a predetermined character selection with one of the circular flat side freely rotatable signal at a remote location, mounted on the shaft 20. The outer surface of the pot A coloring device with a housing-shaped stamp wheel is composed of flat surfaces 34, which set a supply of stamping ink 35 and two, such that the top view in the direction of the ink transfer rollers 36, 37 is represented by AbWelle 20 a chordal polygon . Provided on the circle of the stamp wheel 86 in such a way that the round flat side of the stamp wheel 86 are several 30 type plates, which are arranged with the circumference of the stamp spaced apart balls 66 of wheel 86, not in contact with which one each by one Spring come against the loading paint roller 37, but which is pressed by the disc 22 adjacent to the cam. If the Ku roll 44 radially outwardly born depressed type plate 66 is pressed on the die wheel 86 with the blind holes against the roller 37 and inked. 46 are aligned in the disk 22, the 35 Each of the stamp wheels on the shaft 20 has a stamp wheel 86 by the inking device permanently assigned to the shaft 20; it is also possible to have the bound disk 22 driven. to make the rollers 36, 37 so long that they are

For each possible character to be printed, the entire length of the stamp wheel unit is

one flat surface of the pot surface and one spring stretch.

loaded ball 66 is provided. In the case of the illustrated 40 the schematically illustrated control device for embodiment, each stamp wheel has ten digits, the stamp wheels include a type selection means 47, far from 0 to 9 and therefore ten flat surfaces and ten a comparison circuit 48, a gate circuit 49, through the balls 66 and the associated blind hole a delay circuit 50 and the switches forced 46 lock notches formed. It goes without saying that the control device controls the selection of the fact that more or less than ten numerical digits or characters are used on each of the stamps or alphabet characters; to make the explanation easier, however, the number of stamp wheels 86 and the connections to one stamp wheel are shown and can be freely selected. . The type selecting means 47 which is a calculator

The flat surfaces of the cup-shaped stamp wheel 86 can generate a four-bit binary signal for each carry a type plate, which is transmitted in the further description 50 stamp wheel, which is written as type plates 0 to 9 according to the lines 47 a to 47 d and a digit to be stamped on the same arranged digit types 0 to 9 represents letters or characters. A signal is being drawn. Each type plate has four pegs in the fifth line 47 e indicates that a number 86 a to 86 d, which is selected through holes in the planar characters, and turns on the protruding and closing 55 switch 51 attached to a plate 88 each . The signal from switch 51 is energized. Each of the four pins is supported by a pressure electromagnet 94, which causes the stop spring 88 to surround a to 88 d , so that each type plate lever 92 detects the stamp wheel 86. When the disk 22 normally attached to its associated surface rotates, each of its sets of lies actuates. The plates 88 are cranked and serve as cam contacts for one of the corresponding switch plungers which are actuated by the roller 44. 60 98. The switches 98 are with a voltage source

Connected to the inside of a specific plane surface 89 (FIG. 2), which is shown in FIG. 1 the inseminated stamp wheel 86 is a single projection 90 which is omitted for the sake of clarity. See the signals. A stop lever 92 actuated by one or more of the four first (Verten 94 actuated stop levers 92, key-operated) switches 98 a to 98 d is mounted on the carrier 21 by the electromagnet. represent a bedaß in the excitation of the electromagnet 94 on ⁶ 5 agreed in a given time by the roller 44 stop lever 92 fixed pin 92 α the approach advanced type plate and are detected at the 90, whereby the action of the locking detents 66/46 gate circuit 49 created. The signal from the fifth, canceled and the stamp wheel 86 in a reference the so-called alignment switch 98 e is to

Opening the gate circuit 49 used to enable the application of the signals from the four encryption switches 98 α to 98 d to the comparison circuit 48, provided that the switch 60 is closed. If the signals from the first four encryption switches 98 α to 98 d are identical to the four signals from the type selector

47, a signal from the comparison circuit

48 generated. This signal in line 52 switches off switch 51, which in turn switches off the electromagnet 94 turns off, whereby the stop lever 92 is removed from the punch wheel 86 and the rotation of the punch wheel 86 with the disk 22 is made possible. The signal from the comparison circuit 48 becomes also transmitted via the line 53 to the delay circuit 50, which the signal for an appropriate Time period, e.g. B. for one revolution of the stamp wheel, delayed. The signal from the delay circuit 50 is then transmitted to the electromagnet 54 via the line 55. The piston 56 this electromagnet 54 is attached to a stationary component 57, so that an excitation of the Electromagnet 54 a downward movement of the entire stamp unit and the stamping of the stamped Character on the object 58 causes. The signal from the comparison circuit 48 is on Pulse with a limited duration, and at the end of the pulse, the electromagnet 54 is de-energized and the The stamp unit is returned to its starting position by a return spring arranged in the electromagnet 54 deferred. The signal from delay circuit 50 also acts to reset switch 60 used in the open state.

The particular number and position of the cam contacts in groups 24 to 33 (FIG. 2) are clearly recognizable with the exception of group 29 located behind the switches 98. Da type plates are present, the disc 22 has ten groups of cam contacts 24 to 33, and each group has at least two and at most five cam contacts. The presence or absence of a cam contact at a given point in each group determines a special type plate, which is to be selected. The possible positions of the cam contacts in each group are z. B. with - 1, -2, -3, -4 and -5, the position -1 being closest to the center of the disc is located. The cams in the first four positions are used for encryption, and the Cam in the fifth position, which is present in each group, is used for alignment. the The following table shows the encryption generated by the cams in the first four positions.

-1 position -3 -4 Type X X X plate- - ² X X digit Group 24 X X X X 1 Group 25 X X X 2 Group 26 X X 3 Group 27 ' X 4th Group 28 X X X 5 Group 29 X X 6th Group 30 X X 7th Group 31 X 8th Group 32 X 9 Group 33 X 0

In the table above, an X indicates the presence of a cam contact. It will be apparent that the table represents a particular form of binary encryption and that with four possible encryption cam contacts in each group, a maximum of sixteen type plates could be identified if required. If, in another embodiment, the type plates were to contain alphabetical characters, then twenty-six type plates would be required for each stamp wheel and consequently five cam contact positions (2 ⁵ = 32) would be required. It will be understood that other code arrangements can also be used.

From the table in connection with FIG. 2 It can be seen that group 24 of the cam contacts has the type number "1", group 25 the type number »2«, group 26 is assigned to type number »3«, etc. up to group 33, which is the Type number »0« is assigned. That is, when a group of cam contacts hit the switches 98 is adjacent and the stamp wheel 86 in the reference position by the pin 92 α on the stop lever 92 is stopped, the contacts adjacent to the group of switches 98 are assigned Type plate pressed by the roller 44 radially outward from the plane surface of the stamp wheel.

The stamp wheel 86 is rotatably mounted on the shaft 20 and is rotated with the disk 22 when the balls 66 (FIG. 1) are engaged in the associated blind bores 46 of the disk 22 and the electromagnet 94 is de-energized, whereby the spring 96 holds the stop lever 92 out of the travel path of the pin 90. When the electromagnet 94 is excited by a signal from the type selection unit 47 (FIG. 1), the pin 92 a of the stop lever 92 is set in the path of movement of the projection 90 and the stamp wheel 86 is stopped in a reference position. In the present embodiment, the boss 90 is located between the "0" and "!." Digit-type plates. When the stamp wheel 86 is in this reference position, the cam 38 actuates the switch 39, which in turn closes the switch 60 via the line 61.

When the stamp wheel 86 is held in the reference position, the roller 44 presses the type plate radially outward, the number of which corresponds to the positions of the switches 98 generated by the cam contacts on the disk 22. In FIG. 2, the cam contacts 29 associated with the number "6" are in contact with the switches 98, and the roller 44 presses the type plate with the number "6" radially outwards. When the disk 22 is rotated clockwise by the shaft 20, the next group of cam contacts 28, assigned the number "5", comes into operation with the switches 98; at the same time the roller 44 will press the type plate 5 radially outwards. Each of the switches 98 α to 98 e is connected to the voltage source 89, which is only shown schematically. When each of these switches is actuated, their output line is connected to the voltage source 89.

Each group of the cam contacts on the disc 22 has a cam contact in the fifth or outermost position. This cam contact is not provided for the purpose of encryption, but it acts with the switch 98 e for alignment purposes together. From the drawings is

It can be seen that this cam contact is slightly offset with respect to the other cam contacts in each group. When the disk 22 is rotated clockwise, the first four cam contacts used for encryption therefore hit the switches 98 a to 98 d a little earlier than the fifth cam contact can actuate the switch 98 e. The signals from the operating switches 98 to 98 etc. α are not (F i g. 1) in the comparison circuit 48 transmitted before the fifth or alignment cam contact operates the switch 98 e. This slight delay results from the local displacement of the alignment cam and prevents undesirable effects as a result of rebounding and sparking and due to early or late closing of the switches 98 α to 98 d.

From the in FIG. 3, the stop lever 92 and the projection 90 can be seen more clearly. When the electromagnet 94 is de-energized, the spring 96 holds the stop lever 92 outside the path of movement of the attachment 90, while when the electromagnet 94 is excited by a signal from the switch S1 (FIG. 1), the stop lever 92 is in the path of the attachment 90 is moved and the pin 92 α detects the projection 90 in order to stop the stamp wheel 86. In the present embodiment, as also shown in FIG. 3, ten balls 66 under spring action are provided, but the same result could also be achieved with just one ball. The balls are arranged to snap into the ten blind bores 46 in the disk 22, but these blind bores 46 in the disk 22 are not shown in FIG. 3 for better clarity of the figure. However, they are arranged on the side of the disk 22 opposite the groups of cam contacts 24 to 33 and on the same radii as the cam contacts. When the extension 90 is in the reference position established by the stop lever 92, the cam 38 on the extension 90 actuates the switch 39 to thereby close the switch 60 via the line 61 and thereby the transmission of the signals from the switches 98 a to 98 e to enable gate circuit 49. This ensures that no signals are applied to the gate circuit 49 before the stamp wheel 86 is stopped in the reference position.

The mode of operation of the printing device will now be described in connection with FIG. Normally, the shaft 20 rotates in a clockwise direction with the disk 22, which in turn rotates the punch wheel 86 by means of the balls 66. The electromagnet 94 is de-energized, and the stop lever 92 is not in the way of the approach 90. The digit to be stamped is determined by the type selector 47, which sends a four-bit binary signal over the lines 47 a to 47 a * to the comparison circuit 48 and the Switch 51 turns on by a signal via line 47 e. When the switch Sl is switched on, the signal appearing in its output line 59 causes the excitation of the electromagnet 94 and thereby the setting of the stop lever 92 in the path of movement of the projection 90 on the punch wheel 86. The pin 92 α on the stop lever detects the projection 90 to the To stop stamping wheel 86 in the reference position, and the cam 38 actuates the switch 39, which causes the switch 60 to close.

The disc 22 continues its rotation continued, and each group of the cam contacts 24, 25, 26 ... moves over the switches 98 and closes in the passing-by certain switches 98 α to 98 e in accordance with the number and position of the cam contacts in each Group. When the switches 98 α to 98 e are closed, a signal appears in their output line. The fifth or alignment cam contact in each group is always present and actuates the

ίο switch 98 e, through whose signal the gate circuit 49 is opened in order to enable the signals from the encryption switches 98 α to 98 d to be applied to the comparison circuit 48, in which the signals are compared with the signals from the type selection device 47. It is now assumed that the number to be stamped is a "6". Therefore, when the cam contact group 29 (table) assigned to the number "6" reaches the switch 98, a comparison signal is generated by the comparison switch.

ao tion 48 generated. At this point in time, the roller 44 pushes the type plate 6 radially outward. The signal from the comparison circuit 48 switches off the switch 51, the electromagnet is de-energized, and the spring 96 pulls the stop lever 92 out of the path of movement of the projection 90. Under the action of the spring-loaded balls 66, the stamp wheel 86 rotates with the disk 22 and with the protruding type plate 6. When the type plate 6 passes the inking device 34, an amount of paint is transferred from the roller 37 to the type plate 6.

The output signal from the comparison circuit 48 delayed by the delay circuit 50 is applied to the electromagnet, the KoI-ben 56 is attached to the stationary part 57, so that When the electromagnet is excited, the entire stamp wheel unit and the protruding type plate 6 are lowered to strike the object 58 to be stamped. The signal from the delay circuit 50 also resets switch 60.

It should be understood that each of the stamp wheels on the shaft 20 is adjusted in the same way, although the above description has referred to a single stamp wheel. The only difference would be that the type selector 47 generate a four-bit code signal for each stamp wheel and that multiple gates, comparison circuits, and multiple switches are used will be. It will be obvious to those skilled in the art that variations within the range of the invention can be made. Therefore, the type selector 47 can be programmed Be a computer or a key-operated device that is manually operated by an operator in a central station can be operated to control a variety of stamping devices. Instead of actuating the electromagnet 54 by the delayed comparison signal, this electromagnet could be connected back to a control station, so that the stamp time optionally by a Operator or other device can be controlled.

As already mentioned, the punch wheel 86 is driven by the disk 22 by means of the sprung balls 66. When the stop lever 92 stops the punch wheel 86, the balls 66 snap into and out of the blind bores 46 in the disc 22, and this results in wear on the balls and disc

and noisy work. Another method of performing 'this function would be, physically separate the disc 22 and punch wheel 86 on the shaft 20 when the stop lever 92 the punch wheel 86 detected and the disc 22 and the punch wheel 86 to lock forcibly when the Stop lever 92 does not detect the stamp wheel 86. This can be done by arranging a cam on the Stop lever 92 can be reached, which causes the punch wheel 86 and the disc 22 to be in to move and out of the positive locking position when the stop lever 92 is moved.

Claims (12)

Patent claims: 1. Stamping device with a relative movement serving for stamping between the area to be stamped and the electromagnet generating the stamp carrier and with several independently and simultaneously adjustable on a common shaft Stamp wheels that can be connected to a common drive device via couplings are, and can each be influenced by an electrical locking device, the electrical Locking device of each stamp wheel each one a locking lever actuating electromagnet , characterized in that each stamp wheel (86) on its lateral surface Has type characters bearing, in the radial direction to and fro plates (0 to 9), which inevitably follow one another are displaceable in their radial outer position and with simultaneous coupling of the pressure wheel (86) can be fixed with the shaft (20) in this outer position, and that for controlling the Coupling one supplied by an external type selection device (47), one at a time Type character assigned pulse combinations with the in the rhythm of the radially outward shifted plates (0 to 9) generated the pulse combinations assigned to these plates (0 to 9) comparative circuit (48) is provided. 2. Apparatus according to claim 1, characterized in that the stamp wheels (86) are free are rotatably mounted on said shaft (20) that each stamp wheel (86) one with the Shaft (20) non-rotatably connected disk (22) is assigned, each stamp wheel-disk pair by locking mechanism (46, 66) can be connected to one another, and that each disc (22) for Creation of the corresponding type plate (0 to 9) that is shifted radially outward Pulse combination in the radial direction extending cam groups (24 to 33) of a number equal to the number of type plates (0 to 9). 3. Device according to claims 1 and 2, characterized in that each stamp wheel (86) through one in each case in the path of movement of one attached to the punch wheel (86) Lug (90) pivotable stop lever (92) in its caused by the locking mechanism (46, 66) of its driven disc (22) Rotation is stopable. 4. Apparatus according to claim 2, characterized in that the stamp wheel (86) is cup-shaped is formed and the lateral surface is composed of flat surfaces, such that the Top view in the direction of the axis of rotation represents a polygonal tendon that is inside the cup-shaped Stamp wheel (86), the disk (22) connected to the drive shaft (20) and the with the cams (24 to 33) of the disc (22) cooperating contacts (98) are arranged. 5. Device according to claims 1 and 4, characterized in that on the outside of each flat surface of the cup-shaped punch wheel (86) a type plate (0 to 9) rests, which with one of the inside of the flat surface adjacent, by springs (88 a to 88 d) radially inwardly pressed plate (88) is connected by means of guide pins (86 a to 86 d) , and that the disk (22) connected to the drive shaft (20) has a roller (44 ), this circle having a diameter which is greater than the circle inscribed by the plates (88) located in their radially inner position. 6. Apparatus according to claim 2, characterized in that as a locking mechanism between the punch wheel (86) and the disk (22) connected to the drive shaft (20) each Ball locking mechanism (46,66) per type plate (0 to 9) is used. 7. Apparatus according to claim 3, characterized in that for each stamp wheel (86) on an electromagnet (94) is attached to the carrier (21) and the stop lever (92) is hinged to its armature is, which by a spring (96) out of the path of movement of the attached to the stamp wheel (86) Nose (90) is durable. 8. Device according to claims 1, 2 and 7, characterized in that one with the the stop lever actuating electromagnet (94) connected switch (51) is provided, which can be switched on by the external type selection device (47) when the das selected characters representing the pulse combination and which can be switched off by the comparison circuit (48) upon matching of those of the aforementioned type selector (47) and of the cam groups (24 to 33) of FIG with the drive shaft (20) connected disk (22) generated pulse combination. 9. Apparatus according to claim 8, characterized in that between the comparison circuit (48) and the cam groups (24 to 33) sensing contacts (98) a gate circuit (49) is interposed, which is evident and through which of the one opposite the remaining cams within each cam group (24 to 33) offset in the sense of lag arranged cams generated pulse. 10. Apparatus according to claim 9, characterized in that the stamp wheel (86) has a Carries cam (38) to which a contact (39) fastened to the carrier (21) is assigned, wherein by appropriate spatial arrangement, this contact (39) closes during passage the nose (38) takes place through the range of action of the stop lever (92), whereby a between the gate circuit (49) and the contacts (98) sensing the cam groups (24 to 33) switched switch (60) can be switched to the on state. 809 518/12 11. Device according to claims 8 to 10, characterized in that the output of the comparison circuit (48) is connected to a delay circuit (SO), the output (59) of which is provided both for the reciprocating movement of the carrier (21) Electromagnet (54) and with the off side of the gate circuit (49) upstream switch (60) is connected. 12. The device according to claim 1, characterized in that the stamp wheels (86) are free are rotatably mounted on said shaft (20) that each stamp wheel (86) one with the Shaft (20) non-rotatably connected disk (22) is assigned, each stamp wheel-disk pair can be connected to one another by a form-fitting coupling, wherein for the coupling one by means of an electromagnetic in the path of movement of the punch wheel-disk pair movable control member achievable relative displacement of stamp wheel (86) and disc (22) is required in the axial direction. Legacy Patents Considered:
German Patent No. 1166 492. 1 sheet of drawings 809 518/12 3. 68 © Bundesdruckerei Berlin